[css-transforms-1] WPT tests need to be updated to latest specification

[svgeesus]

Large number of the [WPT tests for css-transforms-1] are now incorrect (they were correct at one time but have not been updates as the specification changed to reflect actually implemented behavior). In particular, there are still tests for:

• CSS units in the SVG transform presentation attribute
• CSS units in the SVG gradientTransform presentation attribute
• CSS units in the SVG patternTransform presentation attribute
• translateX(),translateY(), scaleX(), scaleY(), and skew() in the presentation attributes
• ommitted comma-wsp in transforms and transform-list productions
• 3-value rotate()
• 3D transforms (tests should be re-labelled as css-transforms-2 tests)

[svgeesus]

The tests for transform-box need to be supplemented by tests for content-box, border-box, and stroke-box (see spec)

Currently, only the fill-box and view-box values are tested.